Guang's house was a terrific end to our time in Thailand. We stayed in two different spacious, comfortable rooms due to scheduling. Both had working A/C units and large air purifiers. The bed was comfy and clean and close to the bathroom which always had working hot water. It's a fantastic value and a quick taxi or metro ride to most of the interesting spots in Bangkok.
The real winner though of this place is Guang and his family, especially his mother who cooked us delicious food each morning, helped us do our laundry, and woke up early to help us get to the bus station to get to Cambodia. Guang was warm and welcoming and spoke to us at length about Thailand and even bought us Thai ice tea packets. His brother also helped me print out my Vietnam visa. They made Bangkok feel like a second home.
I'd stay here anytime I come back to Bangkok.